You don't let people be offended by it. There's no "offensive" reporting, only illegal content reporting. The people who want to post edgy things will go there.

You don't let people be offended by it. There's no "offensive" reporting, only illegal content reporting. The people who want to post edgy things will go there. The immediate result is that every other area of discussion becomes less "violent and offensive." People who are offended in the garbage pile get told not to go to the garbage pile. The offenders however, get told to keep their garbage in the pile. Nobody gets censored. Nobody gets offended (without ignoring the warnings.) The entire planet cools down. I have no idea if it would work at Twitter's scale though.